Port 5321
bsfsvr-zn-ssl · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | bsfsvr-zn-ssl |
| Registered | 2008-07-03 |
Frequently asked questions
What is port 5321 used for?
Port 5321 is registered with the IANA for bsfsvr-zn-ssl (TCP/UDP). Description: Webservices-based Zn interface of BSF over SSL; Reserved.
Is port 5321 a well-known port?
No. Port 5321 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 5321 is open?
Locally on Linux with ss -tulpn | grep ':5321\b', on Windows with netstat -ano | findstr :5321. To test a remote host use Test-NetConnection <host> -Port 5321 in PowerShell or nc -zv <host> 5321 on Linux/macOS.
How do I open port 5321 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 5321/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=5321/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 5321" -Direction Inbound -Protocol TCP -LocalPort 5321 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | bsfsvr-zn-ssl | Webservices-based Zn interface of BSF over SSL |
| UDP | – | Reserved |